String stability in microgrids using frequency controlled inverter chains

Title: String stability in microgrids using frequency controlled inverter chains
Creator: Silva, Guilherme F.; Donaire, Alejandro; Seron, Maria M.; McFadyen, Aaron; Ford, Jason
Relation: ARC.DP190102859 http://purl.org/au-research/grants/arc/DP190102859
Relation: IEEE Control Systems Letters Vol. 6, p. 1484-1489
Publisher Link: http://dx.doi.org/10.1109/LCSYS.2021.3114143
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: journal article
Date: 2022
Description: In this letter we identify, and propose a solution for, the string stability problem that may arise in frequency droop control schemes for a type of inverter-based microgrid. We consider a previously proposed frequency droop control with secondary control loop and we investigate the effect on the performance due to an increase in the number of inverters connected to the microgrid. To mitigate the observed performance deterioration, we propose a new controller that guarantees string stability of the inverter-based microgrid and show its performance via simulations.
Subject: agents-based systems; distributed control; smart grid
Identifier: http://hdl.handle.net/1959.13/1466033
Identifier: uon:47443
Identifier: ISSN:2475-1456
Language: eng
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